2000 chevy astro van with strange vibration. Pretty vague question but it vibrates at idle so bad it will spin a coffee cup in the cup holder. At just over idle and driving its fine. Motor has tons of miles 548k. Just started doing this awhile ago. No check engine light and it passes emissions. Like...

That helps. I will pull the relay like suggested. Thanks again.

Thanks for the great info. I have heard about the compressor running on the defrost setting before. But mine runs even on just the Heat setting and the vent settings on floor or mix or any combo for that matter. Also the intervals between the clutch being on and off get longer. Starts at about 12 se...

I have a 2000 chevy astro basic work van. The ac clutch cycles on and off repeatedly even when i do not have the ac on. It stays on for a long time causing the drier/filter? to ice over. Is this normal?? Thanks for any info.
-Paul

Thanks. I was wondering about the record myself! As far as oil goes it just has had normal 5w-30 quaker state and mobil(dino not synthetic) up to about 350,000. Then i switched it to Castrol 20w-50 which the oil change place charged more for. I switched due to the oil pressure at idle getting a litt...

Just acquired my work van that has been under my butt for 12 years. Originally purchased at a park n sell with 105,000 miles. As of its retirement it has 548,103 miles. Been a great van. Obviously with a few trannies and fuel pumps,water pumps etc. Motor is original and still runs perfect. Anyone ha...